{"id":158363,"date":"2024-05-08T12:49:05","date_gmt":"2024-05-08T04:49:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/158363.html"},"modified":"2024-05-08T12:49:08","modified_gmt":"2024-05-08T04:49:08","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-devtools-%e8%b0%83%e8%af%95-javascript-%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/158363.html","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 devtools \u8c03\u8bd5 JavaScript \u4ee3\u7801"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528<\/p>\n

\u4f7f\u7528 DevTools \u8c03\u8bd5 JavaScript \u4ee3\u7801\u662f\u4e00\u9879\u5173\u952e\u80fd\u529b\u5bf9\u4e8e\u524d\u7aef\u5f00\u53d1\u8005\u548c\u8f6f\u4ef6\u5de5\u7a0b\u5e08\u800c\u8a00\u3002\u901a\u8fc7\u65ad\u70b9\u8c03\u8bd5\u3001\u67e5\u770b\u8c03\u7528\u6808\u3001\u76d1\u63a7\u7f51\u7edc\u8bf7\u6c42\u3001\u5ba1\u67e5\u9875\u9762\u5143\u7d20\u53ca\u4fee\u6539\u6837\u5f0f<\/strong>\u7b49\u529f\u80fd\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6709\u6548\u5730\u5b9a\u4f4d\u548c\u89e3\u51b3\u4ee3\u7801\u4e2d\u7684\u95ee\u9898\u3002\u7279\u522b\u5730\uff0c\u65ad\u70b9\u8c03\u8bd5<\/strong>\u529f\u80fd\u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u5728\u4ee3\u7801\u7684\u7279\u5b9a\u4f4d\u7f6e\u6682\u505c\u6267\u884c\uff0c\u8fd9\u6837\u53ef\u4ee5\u67e5\u770b\u90a3\u4e00\u523b\u7684\u53d8\u91cf\u503c\u548c\u7a0b\u5e8f\u72b6\u6001\uff0c\u662f\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u6700\u4e3a\u6838\u5fc3\u7684\u90e8\u5206\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bbe\u7f6e\u65ad\u70b9<\/h3>\n<\/p>\n

\u8bbe\u7f6e\u65ad\u70b9\u662f\u5728JavaScript\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u4e00\u6b65\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u7279\u5b9a\u4ee3\u7801\u884c\u6682\u505c\u6267\u884c\uff0c\u4ece\u800c\u68c0\u67e5\u90a3\u65f6\u7684\u7a0b\u5e8f\u72b6\u6001\u3002<\/p>\n<\/p>\n

\u5728 DevTools \u4e2d\uff0c\u6253\u5f00 Sources \u9762\u677f\uff0c\u627e\u5230\u9700\u8981\u8c03\u8bd5\u7684 JavaScript \u6587\u4ef6\u5e76\u6253\u5f00\u3002\u5728\u4ee3\u7801\u7f16\u8f91\u5668\u4e2d\uff0c\u70b9\u51fb\u4f60\u60f3\u8981\u6682\u505c\u6267\u884c\u7684\u884c\u53f7\u5de6\u4fa7\uff0c\u5c06\u51fa\u73b0\u4e00\u4e2a\u84dd\u8272\u7684\u56fe\u6807\uff0c\u8868\u793a\u5728\u8be5\u884c\u8bbe\u7f6e\u4e86\u65ad\u70b9\u3002\u8fd0\u884c\u4ee3\u7801\u65f6\uff0c\u4e00\u65e6\u6267\u884c\u5230\u8be5\u884c\uff0c\u5c31\u4f1a\u81ea\u52a8\u6682\u505c\uff0c\u5141\u8bb8\u4f60\u68c0\u67e5\u5f53\u524d\u7684\u4f5c\u7528\u57df\u3001\u8c03\u7528\u6808\u548c\u53d8\u91cf\u503c\u3002<\/p>\n<\/p>\n

\u6b64\u5916\uff0c\u6761\u4ef6\u65ad\u70b9\u662f\u5728\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u65f6\u624d\u4f1a\u89e6\u53d1\u7684\u65ad\u70b9\u3002\u5728\u884c\u53f7\u4e0a\u53f3\u952e\u70b9\u51fb\uff0c\u9009\u62e9\u201cAdd conditional breakpoint…\u201d\uff0c\u7136\u540e\u8f93\u5165\u6761\u4ef6\u8868\u8fbe\u5f0f\u3002\u8fd9\u79cd\u7c7b\u578b\u7684\u65ad\u70b9\u975e\u5e38\u6709\u7528\uff0c\u7279\u522b\u662f\u5728\u8c03\u8bd5\u5faa\u73af\u6216\u9ad8\u9891\u7387\u8c03\u7528\u7684\u51fd\u6570\u65f6\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u67e5\u770b\u8c03\u7528\u6808<\/h3>\n<\/p>\n

\u67e5\u770b\u8c03\u7528\u6808\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u4e86\u89e3\u5728\u65ad\u70b9\u5904\u524d\u7684\u51fd\u6570\u8c03\u7528\u5e8f\u5217\u3002<\/p>\n<\/p>\n

\u5728\u4ee3\u7801\u6267\u884c\u6682\u505c\u65f6\uff0cDevTools \u4f1a\u663e\u793a\u5f53\u524d\u7684\u8c03\u7528\u6808\u3002\u5728 "Call Stack" \u9762\u677f\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u4ece\u6700\u521d\u7684\u51fd\u6570\u8c03\u7528\u5230\u5f53\u524d\u8fbe\u5230\u65ad\u70b9\u4f4d\u7f6e\u7684\u5b8c\u6574\u8def\u5f84\u3002\u70b9\u51fb\u4efb\u4f55\u4e00\u4e2a\u6808\u5e27\uff0c\u53ef\u4ee5\u76f4\u63a5\u8df3\u8f6c\u5230\u76f8\u5e94\u7684\u4ee3\u7801\u4f4d\u7f6e\u3002\u8fd9\u5bf9\u4e8e\u7406\u89e3\u5f53\u524d\u65ad\u70b9\u4f4d\u7f6e\u662f\u5982\u4f55\u88ab\u89e6\u53d1\u7684\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u76d1\u63a7\u7f51\u7edc\u8bf7\u6c42<\/h3>\n<\/p>\n

\u7f51\u7edc\u8bf7\u6c42\u7684\u76d1\u63a7\u662f\u7406\u89e3\u548c\u8c03\u4f18\u9875\u9762\u52a0\u8f7d\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n

\u5728 DevTools \u4e2d\uff0cNetwork \u9762\u677f\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\u6765\u89c2\u5bdf\u548c\u5206\u6790\u9875\u9762\u7684\u7f51\u7edc\u8bf7\u6c42\u3002\u5728\u8fd9\u4e2a\u9762\u677f\u4e2d\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u6bcf\u4e2a\u8d44\u6e90\u52a0\u8f7d\u7684\u65f6\u95f4\u7ebf\u3001\u5927\u5c0f\u3001\u8bf7\u6c42\u548c\u54cd\u5e94\u5934\u7b49\u8be6\u7ec6\u4fe1\u606f\u3002\u5bf9\u4e8e\u8c03\u8bd5 API \u8c03\u7528\u6216\u4efb\u4f55\u5176\u4ed6HTTP\/HTTPS\u8bf7\u6c42\u5c24\u5176\u6709\u7528\u3002\u901a\u8fc7\u8fd9\u4e9b\u4fe1\u606f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u8bc6\u522b\u6162\u8bf7\u6c42\u3001\u5931\u8d25\u7684\u8bf7\u6c42\u6216\u662f\u4e0d\u5fc5\u8981\u7684\u8bf7\u6c42\uff0c\u4ece\u800c\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n<\/p>\n

\u56db\u3001\u5ba1\u67e5\u5143\u7d20\u548c\u4fee\u6539\u6837\u5f0f<\/h3>\n<\/p>\n

\u5ba1\u67e5\u5143\u7d20\u548c\u4fee\u6539\u6837\u5f0f\u662f\u8c03\u6574\u9875\u9762\u5e03\u5c40\u548c\u8bbe\u8ba1\u7684\u5f3a\u5927\u5de5\u5177\u3002<\/p>\n<\/p>\n

\u4f7f\u7528 DevTools \u7684 Elements \u9762\u677f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5ba1\u67e5\u548c\u4fee\u6539HTML\u548cCSS\uff0c\u5b9e\u65f6\u770b\u5230\u9875\u9762\u5982\u4f55\u54cd\u5e94\u8fd9\u4e9b\u53d8\u5316\u3002\u9009\u62e9\u9875\u9762\u4e0a\u7684\u4efb\u4f55\u5143\u7d20\uff0c\u5c31\u53ef\u4ee5\u5728 Elements \u9762\u677f\u4e2d\u770b\u5230\u5b83\u7684HTML\u7ed3\u6784\u548c\u5e94\u7528\u7684CSS\u89c4\u5219\u3002\u6b64\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u76f4\u63a5\u5728\u9762\u677f\u4e2d\u4fee\u6539\u6216\u65b0\u589e\u6837\u5f0f\u89c4\u5219\uff0c\u8fd9\u5bf9\u4e8e\u6d4b\u8bd5\u548c\u8c03\u6574\u9875\u9762\u8bbe\u8ba1\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<\/p>\n

\u4e94\u3001\u5229\u7528\u63a7\u5236\u53f0\u6267\u884c\u811a\u672c\u548c\u65e5\u5fd7<\/h3>\n<\/p>\n

\u63a7\u5236\u53f0\u4e0d\u4ec5\u53ef\u4ee5\u7528\u6765\u67e5\u770bJavaScript\u8f93\u51fa\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u8fd8\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2a\u4ea4\u4e92\u5f0f\u7684\u811a\u672c\u6267\u884c\u73af\u5883\u3002<\/p>\n<\/p>\n

\u5728 DevTools \u7684 Console \u9762\u677f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u76f4\u63a5\u8f93\u5165\u5e76\u6267\u884cJavaScript\u4ee3\u7801\uff0c\u67e5\u770b\u6267\u884c\u7ed3\u679c\u6216\u8005\u8c03\u8bd5\u4fe1\u606f\u3002\u8fd9\u5bf9\u4e8e\u5feb\u901f\u6d4b\u8bd5\u5c0f\u6bb5\u4ee3\u7801\uff0c\u6216\u8005\u5728\u7f51\u9875\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u811a\u672c\u975e\u5e38\u6709\u7528\u3002\u4f7f\u7528 console.log<\/code>\u3001console.error<\/code> \u548c console.warn<\/code> \u7b49API\uff0c\u53ef\u4ee5\u5c06\u8c03\u8bd5\u4fe1\u606f\u8f93\u51fa\u5230\u63a7\u5236\u53f0\uff0c\u589e\u52a0\u8c03\u8bd5\u7684\u53ef\u89c6\u6027\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u7cbe\u901a\u8fd9\u4e9b\u529f\u80fd\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u8c03\u8bd5\u7684\u6548\u7387\uff0c\u5feb\u901f\u5b9a\u4f4d\u548c\u89e3\u51b3JavaScript\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u95ee\u9898\u3002DevTools\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u719f\u7ec3\u638c\u63e1\u5b83\u5bf9\u4e8e\u524d\u7aef\u5f00\u53d1\u8005\u800c\u8a00\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. \u7528 devtools \u8c03\u8bd5 JavaScript \u4ee3\u7801\u6709\u54ea\u4e9b\u6b65\u9aa4\u548c\u5de5\u5177\uff1f<\/strong>
\n\u4f7f\u7528 devtools \u8c03\u8bd5 JavaScript \u4ee3\u7801\u4e00\u822c\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a\u9996\u5148\uff0c\u6253\u5f00\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\uff0c\u7136\u540e\uff0c\u9009\u62e9\u201c\u8c03\u8bd5\uff08Debugger\uff09\u201d\u9009\u9879\u5361\uff0c\u63a5\u7740\uff0c\u5728 Sources \u9762\u677f\u4e2d\u5b9a\u4f4d\u5230\u8981\u8c03\u8bd5\u7684 JavaScript \u6587\u4ef6\uff0c\u4e4b\u540e\uff0c\u5728\u4ee3\u7801\u4e2d\u8bbe\u7f6e\u65ad\u70b9\uff0c\u518d\u8fd0\u884c\u4ee3\u7801\uff0c\u6700\u540e\uff0c\u5728\u65ad\u70b9\u5904\u6267\u884c\u6b65\u8fc7\uff08Step Over\uff09\u6216\u6b65\u8fdb\uff08Step Into\uff09\u8fdb\u884c\u8c03\u8bd5\u3002\u8fd8\u6709\u4e00\u4e9b\u5e38\u7528\u7684\u8c03\u8bd5\u5de5\u5177\uff0c\u5982\u65ad\u70b9\u8bbe\u7f6e\u5de5\u5177\u3001\u76d1\u89c6\u53d8\u91cf\u5de5\u5177\u3001\u8c03\u8bd5\u65e5\u5fd7\u5de5\u5177\u7b49\uff0c\u90fd\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u5feb\u901f\u5730\u5b9a\u4f4d\u548c\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n

2. \u5982\u4f55\u5728 devtools \u4e2d\u8bbe\u7f6e\u65ad\u70b9\u6765\u8c03\u8bd5 JavaScript \u4ee3\u7801\uff1f<\/strong>
\n\u5728 devtools \u4e2d\u8bbe\u7f6e\u65ad\u70b9\u662f\u8c03\u8bd5 JavaScript \u4ee3\u7801\u7684\u4e00\u79cd\u5e38\u7528\u65b9\u6cd5\u3002\u53ea\u9700\u5728\u8981\u8bbe\u7f6e\u65ad\u70b9\u7684\u4ee3\u7801\u884c\u4e0a\u70b9\u51fb\u4e00\u4e0b\uff0c\u5c31\u53ef\u4ee5\u5728\u65ad\u70b9\u4f4d\u7f6e\u751f\u6210\u4e00\u4e2a\u7ea2\u8272\u7684\u5c0f\u5706\u70b9\u3002\u5f53\u4ee3\u7801\u8fd0\u884c\u5230\u6b64\u5904\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u81ea\u52a8\u505c\u6b62\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u5355\u6b65\u6267\u884c\u3001\u67e5\u770b\u53d8\u91cf\u503c\u7b49\u64cd\u4f5c\uff0c\u5bf9\u4ee3\u7801\u8fdb\u884c\u8c03\u8bd5\u3002\u9664\u4e86\u70b9\u51fb\u884c\u53f7\u8bbe\u7f6e\u65ad\u70b9\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6761\u4ef6\u65ad\u70b9\u3001DOM \u65ad\u70b9\u7b49\u9ad8\u7ea7\u65ad\u70b9\u8bbe\u7f6e\u65b9\u5f0f\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u8c03\u8bd5\u9700\u6c42\u3002<\/p>\n

3. \u5728 devtools \u4e2d\u5982\u4f55\u67e5\u770b\u548c\u76d1\u63a7 JavaScript \u53d8\u91cf\u7684\u503c\uff1f<\/strong>
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